16897447891152 has 100 divisors (see below), whose sum is σ = 49151876672800. Its totient is φ = 5604178612032.

The previous prime is 16897447891021. The next prime is 16897447891271. The reversal of 16897447891152 is 25119874479861.

16897447891152 is a `hidden beast` number, since 1 + 6 + 8 + 97 + 4 + 478 + 9 + 11 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32501278 + ... + 33017085.

It is an arithmetic number, because the mean of its divisors is an integer number (491518766728).

Almost surely, 2^{16897447891152} is an apocalyptic number.

16897447891152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16897447891152 is an abundant number, since it is smaller than the sum of its proper divisors (32254428781648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16897447891152 is a wasteful number, since it uses less digits than its factorization.

16897447891152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65518582 (or 65518567 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 72.

The spelling of 16897447891152 in words is "sixteen trillion, eight hundred ninety-seven billion, four hundred forty-seven million, eight hundred ninety-one thousand, one hundred fifty-two".